Subtract 8/70 from 90/9, Solve 10 0/9

Subtract 8/70 from 90/9

1^st number: 10 0/9, 2^nd number: 8/70

90/9 - 8/70 is 346/35.

Find the least common denominator or LCM of the two denominators:
LCM of 9 and 70 is 630

Next, find the equivalent fraction of both fractional numbers with denominator 630
For the 1st fraction, since 9 × 70 = 630,
90/9 = 90 × 70/9 × 70 = 6300/630
Likewise, for the 2nd fraction, since 70 × 9 = 630,
8/70 = 8 × 9/70 × 9 = 72/630
Subtract the two like fractions:
6300/630 - 72/630 = 6300 - 72/630 = 6228/630
After reducing the fraction, the answer is 346/35
In mixed form: 931/35

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